3.2.6 GETENV

T.GETENV(name, buffer, size) ! Str,Str,Num => Num

Retrieve the value of the environment variable 'name' and store up to 'size'-1 chararacters of its value in 'buffer'. Append a NUL character to the text in 'buffer'.

GETENV returns the number of characters copied. A return code of -1 indicates that a non-existant variable name has been specified.

See also: GETARG